I suggest you ...

Allow Highlighting with Showing Translation or Dictionary

During my first pass through an article, I like to just highlight the words I don't know, but not actually see the translations or the dictionary. In addition to the "Translations On" and "Translations Off (monolingual)" options, it would be nice if there was a "Highlight Only" mode. Perhaps this could also be implemented/presented as a "Don't open dictionary" option on the "Translations Off" mode.